Boil-water advisory extended past 3 p.m.

The boil-water advisory will remain in effect, Mayor Mitch Landrieu and other officials announced this afternoon.

Michael DeMocker/Times-PicayuneSaints fans walk past an water fountain, out of service due to the citywide boil order, on a concourse in the Superdome for the game between the New Orleans Saints and the Seattle Seahawks on Sunday.

More than two hours after they announced that the advisory would be extended, officials with the New Orleans Sewerage & Water Board and Mayor Mitch Landrieu's administration, despite repeated requests, had not said whether harmful bacteria were found by any of the initial sample tests.

A second round of samples have been collected and those results are expected back this evening.

Following the second round of test results, officials will determine whether the precautionary boil-water advisory will be lifted, officials said.

City officials said they expect to be able to announce later tonight whether it is safe to lift the advisory. Officials did not say when they might make that announcement, however.

Residents have been under a boil-water advisory since early Saturday morning, after a power outage shut down the city's main water-purification facility late Friday.